discourse/db/migrate/20131209091742_create_topic...

26 lines
692 B
Ruby

class CreateTopicRevisions < ActiveRecord::Migration[4.2]
def up
create_table :topic_revisions do |t|
t.belongs_to :user
t.belongs_to :topic
t.text :modifications
t.integer :number
t.timestamps null: false
end
execute "INSERT INTO topic_revisions (user_id, topic_id, modifications, number, created_at, updated_at)
SELECT user_id, versioned_id, modifications, number, created_at, updated_at
FROM versions
WHERE versioned_type = 'Topic'"
change_table :topic_revisions do |t|
t.index :topic_id
t.index [:topic_id, :number]
end
end
def down
drop_table :topic_revisions
end
end